Please try to include photos to show all parts of the fungus, eg top, stem, and gills.
Note any smells, and associated trees or plants (eg oak, birch). A spore print can be very useful.

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Hello. Asking for ID help for another Russula. (Kibby's book is on my wish list).
Found this today after much needed rain. Highest point of badly drained meadow. Under a solitary oak. Thanks for any replies.

For Kibby's key, we need spore print (pure white, creamy or beige), taste and extent of peeling of cap. Also any smell.
The presence of dermatocystidia also is part of the key but I assume you dont have a microscope / stains / technical knowledge to do this at present so we can try without that part of it.

As Adam says, Kibby's book is a must. It's well-laid out and very easy to use. I found it a little difficult to track down on the internet, and there's some confusion about older and newer editions (Amazon seemed to suggest the new edition was only a supplement).
I got my copy of The Genus Russula in Great Britain: with Synoptic Keys to Species, Kibby, G. (2017) for £21.95 from summerfieldbooks.com
And a microscope is a must, too.
All the best... Nick

this such a typical Russula vesca that you can spare the time for microscoping.
If you nevertheless want to prove the determination microscopically, it is enough to look for the so-called Crins in the cap surface. These are slightly thickwalled, pointed, seta-like "needles". You need to do th thin cut of the cap surface ("skalp") and look for these elements. Only Russula vesca and Russula heterophylla have them, none of the other Russula.